US PATENT SUBCLASS 504 / 224
.~.~.~.~ 1,4-oxazines (including hydrogenated)

Current as of: June, 1999
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504 /   HD   PLANT PROTECTING AND REGULATING COMPOSITIONS

116  DF  PLANT GROWTH REGULATING COMPOSITIONS (E.G., HERBICIDES, ETC.) {9}
189  DF  .~ Organic active compound containing {19}
209  DF  .~.~ Hetero ring containing {11}
223  DF  .~.~.~ Hetero ring is six-membered including nitrogen and oxygen {1}
224.~.~.~.~ 1,4-oxazines (including hydrogenated) {2}
225  DF  .~.~.~.~.~> Additional hetero ring containing
226  DF  .~.~.~.~.~> Nitrogen or -C(=X)-, wherein X is chalcogen, bonded directly to ring nitrogen of the oxazine ring

DEFINITION

Classification: 504/224

1, 4-oxazines (including hydrogenated):

(under subclass 223) Compositions wherein the six-membered hetero ring has oxygen in the 1-position, nitrogen in the 4-position, and carbons in the remaining four positions.